1. Without being seen
   "these organisms enter the body invisibly"

See also: invisible

Antonym: visibly

• casemaking clothes moth
• casemate
• casement
• casement window
• caseous
• casern
• casework
• caseworker
• caseworm
• Casey Jones
• Casey Stengel
• cash
• cash account
• cash advance
• cash bar
• cash basis
• cash cow
• cash crop
• cash desk
• cash dispenser
• cash equivalent
• cash flow
• cash in
• cash in hand
• cash in on